1 /* $NetBSD: rpc.c,v 1.3 2021/08/14 16:14:52 christos Exp $ */
2
3 /* rpc.c - rpc lookup routines */
4 /* $OpenLDAP$ */
5 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
6 *
7 * Copyright 2008-2021 The OpenLDAP Foundation.
8 * Portions Copyright 2008 by Howard Chu, Symas Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted only as authorized by the OpenLDAP
13 * Public License.
14 *
15 * A copy of this license is available in the file LICENSE in the
16 * top-level directory of the distribution or, alternatively, at
17 * <http://www.OpenLDAP.org/license.html>.
18 */
19 /* ACKNOWLEDGEMENTS:
20 * This code references portions of the nss-ldapd package
21 * written by Arthur de Jong. The nss-ldapd code was forked
22 * from the nss-ldap library written by Luke Howard.
23 */
24
25 #include "nssov.h"
26
27 /* ( nisSchema.2.5 NAME 'oncRpc' SUP top STRUCTURAL
28 * DESC 'Abstraction of an Open Network Computing (ONC)
29 * [RFC1057] Remote Procedure Call (RPC) binding.
30 * This class maps an ONC RPC number to a name.
31 * The distinguished value of the cn attribute denotes
32 * the RPC service's canonical name'
33 * MUST ( cn $ oncRpcNumber )
34 * MAY description )
35 */
36
37 /* the basic search filter for searches */
38 static struct berval rpc_filter = BER_BVC("(objectClass=oncRpc)");
39
40 /* the attributes to request with searches */
41 static struct berval rpc_keys[] = {
42 BER_BVC("cn"),
43 BER_BVC("oncRpcNumber"),
44 BER_BVNULL
45 };
46
47 NSSOV_INIT(rpc)
48
49 NSSOV_CBPRIV(rpc,
50 char buf[256];
51 struct berval name;
52 struct berval numb;);
53
54 /* write a single rpc entry to the stream */
write_rpc(nssov_rpc_cbp * cbp,Entry * entry)55 static int write_rpc(nssov_rpc_cbp *cbp,Entry *entry)
56 {
57 int32_t tmpint32;
58 int i,numname,dupname,number;
59 struct berval name,*names;
60 Attribute *a;
61 char *tmp;
62
63 /* get the most canonical name */
64 nssov_find_rdnval( &entry->e_nname, cbp->mi->mi_attrs[0].an_desc, &name );
65 /* get the other names for the rpc */
66 a = attr_find( entry->e_attrs, cbp->mi->mi_attrs[0].an_desc );
67 if ( !a || !a->a_vals )
68 {
69 Debug(LDAP_DEBUG_ANY,"rpc entry %s does not contain %s value\n",
70 entry->e_name.bv_val, cbp->mi->mi_attrs[0].an_desc->ad_cname.bv_val );
71 return 0;
72 }
73 names = a->a_vals;
74 numname = a->a_numvals;
75 /* if the name is not yet found, get the first entry from names */
76 if (BER_BVISNULL(&name)) {
77 name=names[0];
78 dupname = 0;
79 } else {
80 dupname = -1;
81 for (i=0; i<numname; i++) {
82 if ( bvmatch(&name, &a->a_nvals[i])) {
83 dupname = i;
84 break;
85 }
86 }
87 }
88 /* get the rpc number */
89 a = attr_find( entry->e_attrs, cbp->mi->mi_attrs[1].an_desc );
90 if ( !a || !a->a_vals )
91 {
92 Debug(LDAP_DEBUG_ANY,"rpc entry %s does not contain %s value\n",
93 entry->e_name.bv_val, cbp->mi->mi_attrs[1].an_desc->ad_cname.bv_val );
94 return 0;
95 } else if ( a->a_numvals > 1 ) {
96 Debug(LDAP_DEBUG_ANY,"rpc entry %s contains multiple %s values\n",
97 entry->e_name.bv_val, cbp->mi->mi_attrs[1].an_desc->ad_cname.bv_val );
98 }
99 number=(int)strtol(a->a_vals[0].bv_val,&tmp,0);
100 if (*tmp)
101 {
102 Debug(LDAP_DEBUG_ANY,"rpc entry %s contains non-numeric %s value\n",
103 entry->e_name.bv_val, cbp->mi->mi_attrs[1].an_desc->ad_cname.bv_val );
104 return 0;
105 }
106 /* write the entry */
107 WRITE_INT32(cbp->fp,NSLCD_RESULT_BEGIN);
108 WRITE_BERVAL(cbp->fp,&name);
109 if ( dupname >= 0 ) {
110 WRITE_INT32(cbp->fp,numname-1);
111 } else {
112 WRITE_INT32(cbp->fp,numname);
113 }
114 for (i=0;i<numname;i++) {
115 if (i == dupname) continue;
116 WRITE_BERVAL(cbp->fp,&names[i]);
117 }
118 WRITE_INT32(cbp->fp,number);
119 return 0;
120 }
121
122 NSSOV_CB(rpc)
123
124 NSSOV_HANDLE(
125 rpc,byname,
126 char fbuf[1024];
127 struct berval filter = {sizeof(fbuf)};
128 filter.bv_val = fbuf;
129 BER_BVZERO(&cbp.numb);
130 READ_STRING(fp,cbp.buf);
131 cbp.name.bv_len = tmpint32;
132 cbp.name.bv_val = cbp.buf;,
133 Debug(LDAP_DEBUG_TRACE,"nssov_rpc_byname(%s)\n",cbp.name.bv_val);,
134 NSLCD_ACTION_RPC_BYNAME,
135 nssov_filter_byname(cbp.mi,0,&cbp.name,&filter)
136 )
137
138 NSSOV_HANDLE(
139 rpc,bynumber,
140 int number;
141 char fbuf[1024];
142 struct berval filter = {sizeof(fbuf)};
143 filter.bv_val = fbuf;
144 READ_INT32(fp,number);
145 cbp.numb.bv_val = cbp.buf;
146 cbp.numb.bv_len = snprintf(cbp.buf,sizeof(cbp.buf),"%d",number);
147 BER_BVZERO(&cbp.name);,
148 Debug(LDAP_DEBUG_TRACE,"nssov_rpc_bynumber(%s)\n",cbp.numb.bv_val);,
149 NSLCD_ACTION_RPC_BYNUMBER,
150 nssov_filter_byid(cbp.mi,1,&cbp.numb,&filter)
151 )
152
153 NSSOV_HANDLE(
154 rpc,all,
155 struct berval filter;
156 /* no parameters to read */,
157 Debug(LDAP_DEBUG_TRACE,"nssov_rpc_all()\n");,
158 NSLCD_ACTION_RPC_ALL,
159 (filter=cbp.mi->mi_filter,0)
160 )
161